Welding and positioning device for quick connector of mine filling pipe

Abstract

The utility model provides a mine filling pipe quick connector welding positioning device which is characterized by comprising a semicircular front positioning clamp, a semicircular rear positioning clamp and an L-shaped positioning strip. A plurality of tie bars are connected between the front positioning clamp and the rear positioning clamp, an annular clamp used for being fixed with a filling pipe is arranged at the tie bars, and the annular clamp comprises a spring clamp body and two semicircular clamping pieces; protruding blocks are arranged at the top ends of the front positioning clamp and the rear positioning clamp respectively, penetrating holes are formed in the protruding blocks, and jacking screws are arranged in the vertical directions of the penetrating holes. The positioning strip comprises a transverse part and a vertical part, and the transverse part of the positioning strip sequentially penetrates through the penetrating holes in the front positioning clamp and the rear positioning clamp and is fixed through a jacking screw in a jacking mode. The welding tool can effectively align the outer end faces of the quick connector and the filling pipe, so that the welding quality is improved; the welding efficiency is improved, the labor intensity of workers is reduced, and the service life of the filling pipe is prolonged; the structure is simple, cost is low and use is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline welding, and in particular relates to a welding positioning device for a mine filling pipe quick joint. Background Art

[0002] Mine filling pipes are generally equipped with annular quick connectors at both ends, and the quick connectors are used to connect the mine filling pipes, and are fixed at the quick connectors by clamps. During the mine filling process, the pressure of the slurry in the filling pipe is very high, so when connecting the pipes, it is necessary to ensure that the filling pipe is flush with the outer end surface of the quick connector, and the pipe and the quick connector are coaxial. If the pipeline and the quick connector are not coaxial, it will not only cause difficulties in connecting the filling pipe, but also aggravate the wear of the pipeline, and may even cause pipe explosion accidents in severe cases. Therefore, designing and inventing a welding positioning device for a mine filling pipe quick connector has become the key to solving the above problems. Utility Model Content

[0003] The utility model aims to solve the problems existing in the prior art and provide a mine filling pipe quick joint welding positioning device which is convenient for alignment and easy to operate.

[0004] To this end, the utility model adopts the following technical solutions:

[0005] A welding positioning device for a mine filling pipe quick connector comprises a semicircular front positioning card and a rear positioning card, and an L-shaped positioning strip; a plurality of tie bars are connected between the front positioning card and the rear positioning card, and an annular clamp for fixing to the filling pipe is provided at the tie bar, and the annular clamp comprises a spring clamp body and two semicircular clips; the tops of the front positioning card and the rear positioning card are respectively provided with a protrusion, the protrusion is provided with a through hole, and a tightening screw is provided in the vertical direction of the through hole; the positioning strip comprises a horizontal portion and a vertical portion, and the horizontal portion of the positioning strip passes through the through holes on the front positioning card and the rear positioning card in turn and is tightened and fixed by the tightening screw.

[0006] Furthermore, it is characterized in that the inner circles of the front positioning card and the rear positioning card are respectively provided with rubber pads.

[0007] Furthermore, the positioning strip is a sheet-like structure.

[0008] The beneficial effects of the utility model are:

[0009] The device can be used to effectively align the outer end faces of the quick connector and the filling pipe, thereby ensuring coaxiality and improving welding quality; at the same time, it improves welding efficiency, reduces labor intensity of employees, increases the service life of the filling pipe, and reduces pipe burst accidents; it has a simple structure, low cost, and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 This is the structural front view of the utility model;

[0012] Figure 3 It is a structural side view of the ring clamp of the utility model.

[0013] In the figure, 1-filling tube, 2-quick connector, 3-front positioning card, 4-rear positioning card, 5-tension rod, 6-bump, 7-tightening screw, 8-positioning strip, 9-annular clamp, 901-spring clamp body, 902-semicircular clamp, 10-weld. DETAILED DESCRIPTION

[0014] The technical solution of the utility model is further described below in conjunction with the accompanying drawings.

[0015] like Figure 1-3 As shown, a quick joint welding positioning device for a mine filling pipe 1 includes a semicircular front positioning card 3 and a rear positioning card 4, and an L-shaped positioning strip 8; the rear positioning card 4 is the same size as the front positioning card 3, so that the welding positioning device as a whole has the same axiality as the pipeline. A plurality of tie bars 5 are connected between the front positioning card 3 and the rear positioning card 4. An annular clamp 9 for fixing with the filling pipe 1 is provided at the tie bar 5, and the annular clamp 9 includes a spring clamp body 901 and two semicircular clamp pieces 902. The top of the front positioning card 3 and the rear positioning card 4 are respectively provided with a protrusion 6, and a through hole is provided on the protrusion 6. A tightening screw 7 is provided in the vertical direction of the through hole. The inner rings of the front positioning card 3 and the rear positioning card 4 are respectively provided with rubber pads (not shown in the figure), which can prevent the positioning device from sliding during welding, thereby affecting the welding effect; the positioning strip 8 is a sheet structure, and the positioning strip 8 includes a horizontal part and a vertical part. The horizontal part of the positioning strip 8 passes through the through holes on the front positioning card 3 and the rear positioning card 4 in turn and is tightened and fixed by the tightening screw 7. The positioning strip 8 is adjusted by sliding so that the vertical part of the positioning strip 8 is close to the edge of the pipeline and the outer edge of the quick connector, so that the quick connector is flush with the outer end surface of the pipeline.

[0016] The method of using the welding positioning device of the utility model is as follows:

[0017] When installing the positioning device of the utility model, hold the tie rod 5 in the middle of the positioning device, place the front positioning card 3 and the rear positioning card 4 on the upper wall of the pipe, and then sleeve the annular quick connector on the end of the pipe. At the same time, adjust the position of the quick connector and the positioning device on the pipe so that the positioning device presses against the quick connector, and the outer end face of the quick connector is flush with the outer end face of the pipe and is coaxial. Then use the annular clamp 9 to clamp and fix the pipe and the positioning device of the utility model to prevent the positioning device from moving. Then adjust the positioning strip 8 so that the vertical part of the positioning strip 8 is close to the outer end face of the pipe and the quick connector, and then tighten the tightening screw 7 on the protrusion 6 to prevent the positioning strip 8 from sliding. The setting of the positioning strip 8 can clamp the outer end face of the quick connector to prevent the quick connector from sliding outward.

[0018] During welding, the pipe is rotated, the half of the pipe without the positioning device is facing upward, and welding is performed along the joint between the inner end face of the quick connector and the pipe. After welding, the positioning device of the utility model is removed, and the other half is welded, and then the positioning and welding of the quick connector are completed.

Claims

1. A mine filling pipe quick joint welding positioning device, characterized in that: The invention comprises a semicircular front positioning card (3) and a rear positioning card (4), and an L-shaped positioning strip (8); a plurality of tie bars (5) are connected between the front positioning card (3) and the rear positioning card (4); an annular clamp (9) for fixing with a filling tube (1) is provided at the tie bars (5); the annular clamp (9) comprises a spring clamp body (901) and two semicircular clamping pieces (902); a protrusion (6) is provided at the top of each of the front positioning card (3) and the rear positioning card (4); a through hole is provided on each of the protrusions (6); a tightening screw (7) is provided in the vertical direction of each of the through holes; the positioning strip (8) comprises a horizontal portion and a vertical portion; the horizontal portion of the positioning strip (8) passes through the through holes on the front positioning card (3) and the rear positioning card (4) in sequence and is tightened and fixed by the tightening screw (7).

2. A mine filling pipe quick joint welding positioning device according to claim 1, characterized in that: The inner rings of the front positioning card (3) and the rear positioning card (4) are respectively provided with rubber pads.

3. A mine filling pipe quick joint welding positioning device according to claim 1, characterized in that: The positioning strip (8) is a sheet-like structure.

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